Initial monorepo setup with npm workspaces and dual TypeScript configuration

- Set up npm workspaces for three packages: pi-tui, pi-agent, and pi (pods)
- Implemented dual TypeScript configuration:
  - Root tsconfig.json with path mappings for development and type checking
  - Package-specific tsconfig.build.json for clean production builds
- Configured lockstep versioning with sync script for inter-package dependencies
- Added comprehensive documentation for development and publishing workflows
- All packages at version 0.5.0 ready for npm publishing

biome.json

@@ -0,0 +1,33 @@
+{
+	"$schema": "https://biomejs.dev/schemas/2.1.4/schema.json",
+	"linter": {
+		"enabled": true,
+		"rules": {
+			"recommended": true,
+			"style": {
+				"noNonNullAssertion": "off",
+				"useConst": "error",
+				"useNodejsImportProtocol": "off",
+				"useTemplate": "off"
+			},
+			"correctness": {
+				"noUnusedVariables": "off"
+			},
+			"suspicious": {
+				"noExplicitAny": "off",
+				"noControlCharactersInRegex": "off",
+				"noEmptyInterface": "off"
+			}
+		}
+	},
+	"formatter": {
+		"enabled": true,
+		"formatWithErrors": false,
+		"indentStyle": "tab",
+		"indentWidth": 3,
+		"lineWidth": 120
+	},
+	"files": {
+		"includes": ["packages/*/src/**/*", "*.json", "*.md"]
+	}
+}